K8. Venous-Venous Extracorporal Cirsulation Hypothermia for Neurological Surgery

T. YAMANO, H. MAKINO, C. YAZAWA
1961 Neurologia medico-chirurgica  
Practical use of the hypothermia for the surgery of the brain and cardiovascular system, have been complicated by difficulty in maneuvering the entire operative processes, including, inability of starting the operation unless the ideal body temperature is obtained, taking too long time to reach optional temperature and awkwardness of the entire procedure. Thus we have newly devised a simplified method of not only obtaining the optional body temperature of 27 degrees (Centigrade), in
more » ... y shortened duration, but also accompanying no complications by cooling the blood stream in a newly established venous venous circuit. This circulation can be easily obtained by connecting plastic tubes from the cubital vein and saphenous vein, between which a heat cooling apparatus which was devised at our clinic, plus a small one way pump is connected. These veins can be ligated following the completion of the hypothermia and the one in the cubital vein can be used for the purpose of intravenous injection of the fluids. We are able to drop 1 degree of temperature within 6-7 minutes. There is some descrepancy of the temperature between the esophagus and the rectum but this homonizes within ten minutes after the cooling is stopped. 9 clinical cases with this type of anaesthesia is discussed and results of the various study under animal experiments are mentioned. K9. Artificial Hibernation in the Surgery of Brain Tumors. The Artificial hibernation-combination of hypothermia and cocktail littique -has been employed by us in the removal surgery of the brain tumor for several years. Cocktail Mr and M. were given as premedication and supplementary to ether and nitrous oxide for maintenance of anesthesia, and also given in small doses postoperatively. Rectal temperature during surgery was kept at 28 to 30°C. Postoperative rewarming was gradual as natural rewarming and on an average 30 hours were required to reach at 37°C of R.T. We employed the amount of adrenocorticosteroid secretion-17-OHCS in urine-as the indicator of stress reaction, and set the "Amount of Stress Reaction -236-
doi:10.2176/nmc.3.236a fatcat:feztrsijq5dbpiqd6tvihx7k7a